2.7t boost problem

Not sure if turbo('s) have gone or i got boost leak, have not tested for leaks yet as just so busy. boost used to hold 1.3 with lots of power, but now struggles to hit 0.8 even when it does in 3rd gear or above it dips down to 0.4 and wont come back up until i reset ecu or just restart engine only code i get is 17964 negative deviation or boost limit not reached..... iv attached 2 videos 1 is just mainly so you can hear the noise the turbos are making the other is the same but 3rd gear run with boost cutting down to 0.4.....

If you have a intake pipe seal missing, then you don't need to look any further.
Seal missing=boost leak=negative deviation.

Click to expand...

no, this is only the rubber ring that seals the intake pipe to the maf housing, is still sealed with out it, my pointy is that i think the ring went into the turbo, i dont think its a boost leak, as even when i first pull away gentley you can hear the turbos giving a deep howl?

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